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diff --git a/src/lib/libcrypto/pem/pem_pk8.c b/src/lib/libcrypto/pem/pem_pk8.c
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1/* $OpenBSD: pem_pk8.c,v 1.10 2015/09/10 15:56:25 jsing Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <string.h>
61
62#include <openssl/buffer.h>
63#include <openssl/err.h>
64#include <openssl/evp.h>
65#include <openssl/objects.h>
66#include <openssl/pem.h>
67#include <openssl/pkcs12.h>
68#include <openssl/x509.h>
69
70static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid,
71 const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u);
72static int do_pk8pkey_fp(FILE *bp, EVP_PKEY *x, int isder, int nid,
73 const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u);
74
75/* These functions write a private key in PKCS#8 format: it is a "drop in"
76 * replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc'
77 * is NULL then it uses the unencrypted private key form. The 'nid' versions
78 * uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0.
79 */
80
81int
82PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x, int nid, char *kstr,
83 int klen, pem_password_cb *cb, void *u)
84{
85 return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u);
86}
87
88int
89PEM_write_bio_PKCS8PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
90 char *kstr, int klen, pem_password_cb *cb, void *u)
91{
92 return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u);
93}
94
95int
96i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
97 char *kstr, int klen, pem_password_cb *cb, void *u)
98{
99 return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u);
100}
101
102int
103i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid,
104 char *kstr, int klen, pem_password_cb *cb, void *u)
105{
106 return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u);
107}
108
109static int
110do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
111 char *kstr, int klen, pem_password_cb *cb, void *u)
112{
113 X509_SIG *p8;
114 PKCS8_PRIV_KEY_INFO *p8inf;
115 char buf[PEM_BUFSIZE];
116 int ret;
117
118 if (!(p8inf = EVP_PKEY2PKCS8(x))) {
119 PEMerr(PEM_F_DO_PK8PKEY,
120 PEM_R_ERROR_CONVERTING_PRIVATE_KEY);
121 return 0;
122 }
123 if (enc || (nid != -1)) {
124 if (!kstr) {
125 if (!cb)
126 klen = PEM_def_callback(buf, PEM_BUFSIZE, 1, u);
127 else
128 klen = cb(buf, PEM_BUFSIZE, 1, u);
129 if (klen <= 0) {
130 PEMerr(PEM_F_DO_PK8PKEY, PEM_R_READ_KEY);
131 PKCS8_PRIV_KEY_INFO_free(p8inf);
132 return 0;
133 }
134
135 kstr = buf;
136 }
137 p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf);
138 if (kstr == buf)
139 explicit_bzero(buf, klen);
140 PKCS8_PRIV_KEY_INFO_free(p8inf);
141 if (isder)
142 ret = i2d_PKCS8_bio(bp, p8);
143 else
144 ret = PEM_write_bio_PKCS8(bp, p8);
145 X509_SIG_free(p8);
146 return ret;
147 } else {
148 if (isder)
149 ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
150 else
151 ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf);
152 PKCS8_PRIV_KEY_INFO_free(p8inf);
153 return ret;
154 }
155}
156
157EVP_PKEY *
158d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
159{
160 PKCS8_PRIV_KEY_INFO *p8inf = NULL;
161 X509_SIG *p8 = NULL;
162 int klen;
163 EVP_PKEY *ret;
164 char psbuf[PEM_BUFSIZE];
165
166 p8 = d2i_PKCS8_bio(bp, NULL);
167 if (!p8)
168 return NULL;
169 if (cb)
170 klen = cb(psbuf, PEM_BUFSIZE, 0, u);
171 else
172 klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u);
173 if (klen <= 0) {
174 PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_BIO, PEM_R_BAD_PASSWORD_READ);
175 X509_SIG_free(p8);
176 return NULL;
177 }
178 p8inf = PKCS8_decrypt(p8, psbuf, klen);
179 X509_SIG_free(p8);
180 if (!p8inf)
181 return NULL;
182 ret = EVP_PKCS82PKEY(p8inf);
183 PKCS8_PRIV_KEY_INFO_free(p8inf);
184 if (!ret)
185 return NULL;
186 if (x) {
187 EVP_PKEY_free(*x);
188 *x = ret;
189 }
190 return ret;
191}
192
193
194int
195i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
196 char *kstr, int klen, pem_password_cb *cb, void *u)
197{
198 return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u);
199}
200
201int
202i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid, char *kstr,
203 int klen, pem_password_cb *cb, void *u)
204{
205 return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u);
206}
207
208int
209PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid, char *kstr,
210 int klen, pem_password_cb *cb, void *u)
211{
212 return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u);
213}
214
215int
216PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
217 char *kstr, int klen, pem_password_cb *cb, void *u)
218{
219 return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u);
220}
221
222static int
223do_pk8pkey_fp(FILE *fp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
224 char *kstr, int klen, pem_password_cb *cb, void *u)
225{
226 BIO *bp;
227 int ret;
228
229 if (!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
230 PEMerr(PEM_F_DO_PK8PKEY_FP, ERR_R_BUF_LIB);
231 return (0);
232 }
233 ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u);
234 BIO_free(bp);
235 return ret;
236}
237
238EVP_PKEY *
239d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
240{
241 BIO *bp;
242 EVP_PKEY *ret;
243
244 if (!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
245 PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_FP, ERR_R_BUF_LIB);
246 return NULL;
247 }
248 ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u);
249 BIO_free(bp);
250 return ret;
251}
252
253
254IMPLEMENT_PEM_rw(PKCS8, X509_SIG, PEM_STRING_PKCS8, X509_SIG)
255IMPLEMENT_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF,
256 PKCS8_PRIV_KEY_INFO)
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-08 09:42:22 +0000